MABERY. THE COMPOSITION OF PETROLEUM. 



595 



Name. 



Tridecane 



Tetradecane 



Pentadecane 



Hexadecane 



Heptadecane 



Octodecane 



Nonodecane 



Heneicosane 



Hydrocarbon, liquid at —10° 



Docosane 



Hydrocarbon, liquid at —10° 



Tricosane 



Hydrocarbon, liquid at —10° 



Tetracosane 



Hydrocarbon, liquid at —10° 



Pentacosane 



Hydrocarbon, liquid at —10° 



Hexacosane 



Hj"drocarbon, liquid ;it —10° 

 Octocosane 



Symbol. 



^13^28 

 C14H30 



^17^36 



C18H38 



C19H40 

 C21H44 

 C22H44 

 ^22 "46 

 ^231^^46 

 C23H48 

 C24H48 



^24^^50 

 ^26"52 

 ^25"52 

 ^27 "52 

 ^^26^54 

 ^28^54 

 ^28"5S 



Boiling Point. 



Melting Point. 



226° 

 236°-238° 

 256°-257° 

 274°-275° 

 288°-289° 

 300°-301° 

 210°-212°, 50 mm. 

 230°-231°, 

 240°-242°, 



258°-260°, " 



272°-274°, 



280°-2.-2°, " 



292°-294°, " 



310°-312°, " 



10° 



20° 

 3.3^-34° 

 40°-41° 



44° 



45° 



48° 



53°-54° 



68° 



60° 



pressure. Much attention has been given to these determinations, espe- 

 cially by Messrs. 0. J. Sieplein and R. P. Gushing. 



The preparation of the distillates described in this paper was begun 

 December 1, 1896, by Mr, A. S. Kittelberger, who distilled 56 kilos of 

 Pennsylvania crude oil. The distillations were later continued by 

 different assistants. The following gentlemen have also aided in the 

 purification, examination, and analysis of these hydrocarbons : Messrs. 

 Shaw, Latimer, R. P. Gushing, Dr. E. J. Hudson, and 0. J. Sieplein. 

 To the latter especially is due the analysis and identification of the 

 chlorine derivatives of the hydrocarbons. 



